Composite disk for caps of bottles or jars.



C. FAY, SR. COMPOSITE DISK FOR CAPS 0F BOTTLES 0R JARS. APPLICATION FILED APR-23, 1914'.

1,144,589 Patented June 29, 1915.

I NVENTQR I WITN ESShEEf f A'rroRNEY CHARLES FAY,:SR., OF PHILADELPHIA, PENNSYLVANIA.

COMPOSITE DISK FOR CAPS OF BOTTLES 0R JARS.

Specification of Letters Patent.

Patented June so, 1915.

Application filed April 23, 1914. Serial No. 833,852.

- To all whom it may concern Be it known that 1, CHARLES FAY, Sn, a citizen of the United States, residing at the city of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements 1n Composite Disks for Caps of Bottles or ars, of which the following is a specification.

My invention relates to a composite disk for a bottle or jar cap, comprising three members, one consisting of a porous pasteboard disk saturated with linseed oil and beeswax and having an applied coating on one surface of shellac to render such impervious to air and fluid conditions, to which exposed, a second member, consisting of a parchmentized paper disk applied to the coated side of said first named disk and a third member, consisting of an uncoated thick, soft or pliable paste-board disk lying on the second member, but not connected therewith; and the said composite disk so arranged, adapted to fit the bottle. or jar cap, to provide a disk therefor that will Withstand a comparatively high steam pressure in the sterilizing of the contents of the bottle or jar as well as will maintain such contents indefinitely in an air and fluid tight condition.

It may be here remarked that the advantage of usingan interposed parchmentized disk between the saturated and coated memberexposed to the contents of the bottle or jar and of the uncoated member next to the body of the sealing closure or cap is to prevent shrinking of one with respect to the other or of unequal drying out of the respective members to such an extent as to interfere with the composite disk, as a whole, maintaining the contents of the bottle or ar in an air or fluid tight condition indefinitely.

In order that my invention as above defined may be better understood, I have illus trated in the accompanying drawings the members constituting the composite disk or gasket and have shown also the same in application to a well known type of sealing closure or metal cap for bottles or jars, in which Figure 1, is a vertical central sectional view through the sealing cap and composite disk of my present invention applied and held by said sealing cap in position; and Fig. 2, is a perspective view of the members of the composite disk separated from each other, but illustrated in their arranged use to constitute with a sealing closure or cap the salient features of my invention as the same has been found practically eflicient, in use.

Referring to the drawings a, is the porous paste-board base-member of the composite disk rendered air and fluid proof by being saturated with linseed oil and beeswax and having a coating on the upper surface of shellac. A parchmentized paper member 6, is applied to the shellac coated surface of the member a, to insulate the same from a member 0, consisting of-a thick porous and soft paste-board disk lying on the paper applied face of the said member a, and un connected therewith and which member 0, is fitted to the metal cap d, of the bottle or jar. The three above defined members prepared and arranged as hereinabove described constitute my said invention in conjunction with the metal cap (2. Long and expensive tests have proven such a composite disk particularly well adapted to withstand com paratively high steam pressure employed to sterilize the contents of a bottle or jar and as well such a composite disk used with a bottle or jar cap is adapted to maintain indefinitely the contents of the bottle in an air and fluid tight condition.

In practical applications of my invention it has been employed for preserving beer, ale and milk as well as vegetables and fruits indefinitely in an odorless andsafe condition.

Having thus described the nature and objects of my invention, what I claim as new and desire to secure by Letters Patent is The combination, in a cap for a bottle or 7 jar, of a metal cap and a thick pliable pasteboard disk fitted thereto, a porous pasteboard disk saturated with linseed oil and beeswax and having on the upper face a coating of shellac to render the same impervious to air and fluid conditions, a parchmentized paper disk applied to the coated side of said disk and so that the uncoated side is in contact With the pliable pasteboard disk of said cap, substantially as and 10 for the purposes described.

In Witness whereof, I have hereunto set my signature in the presence of two subscribing Witnesses.

CHARLES FAY, SR.

Witnesses:

THOMAS M. SMITH, HELEN S. HoLT. 

